Air quality index [µg/m3]:
excellent ≤ 12
good ≤ 36
lightly polluted ≤ 60
moderately polluted ≤ 84
heavily polluted ≤ 120
severely polluted > 120
PM 2.5
[µg/m3]
PM 10
HOUR OPOLSKA ST. ROOF (BEFORE FILTERS)  AIR SUPPLIED TO OFFICES
030031goodexcellent61excellent
020041lightly pollutedexcellent71excellent
010035goodexcellent71excellent
000032goodexcellent61excellent
230032goodexcellent71excellent
220032goodexcellent71excellent
210029goodexcellent61excellent
200025goodexcellent51excellent
190026goodexcellent51excellent
180017goodexcellent41excellent
170018goodexcellent31excellent
160017goodexcellent41excellent
150020goodexcellent41excellent
140019goodexcellent41excellent
130016goodexcellent41excellent
120018goodexcellent41excellent
110018goodexcellent41excellent
100020goodexcellent41excellent
090024goodexcellent41excellent
080026goodexcellent41excellent
070030goodexcellent51excellent
060033goodexcellent41excellent
050030goodexcellent31excellent
040028goodexcellent41excellent